Lens adjustment assembly for electronic digital imaging apparatu

Details Lens adjustment assembly for electronic digital imaging apparatu Lens adjustment assembly for electronic digital imaging apparatu

1995-04-07

2000-06-13

Barlow, John

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

B41J 247, G01D 1534, G02B 2600, G02B 2700

Patent

active

060755490

ABSTRACT:
An electronic digital imaging apparatus includes an intensity-modulated light source for emitting a light beam along an optical path, an adjustment block to which the light source is fixed and which is movable along the optical path to move the light source along the optical path, and means for scanning the light beam along a recording surface. The adjustment block has two opposed ends and a central region; one of the opposed ends being fixed relative to the optical path, the other of the opposed ends being adjustable in the general direction of the optical path, and the central region carries the light source; whereby adjustment of the other of the opposed ends in the general direction of the optical path by a given distance is effective to move the light source along the optical path by a fraction of the given distance. Projection optics are detachably integral with the light source in the optical path for focusing the light beam at the recording surface. The projection optics being detachable from the light source without effecting the position of the light source along the optical path so as to not disturb the focus of the imaging apparatus upon re-attachment of the projection optics to the light source.

REFERENCES:
patent: 4479133 (1984-10-01), Shiozawa et al.
patent: 4913527 (1990-04-01), Jessop
patent: 5177502 (1993-01-01), Schreyer et al.

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